Being apparently able to erase old style glass top EPROMs with a camera flash is perhaps a bit less surprising than random power components messing up. UV light

Being apparently able to erase old style glass top EPROMs with a camera flash is perhaps a bit less surprising than random power components messing up. UV light exposure is how you erase them normally, although you normally use lower light levels for longer, not a short bright camera flash. I do think they need to buy higher grade sticky labels to cover the window with though. :-)